C# winform-合并datagridview标头
我在winForm中合并datagridview标题时遇到问题 我使用此代码:C# winform-合并datagridview标头,c#,winforms,datagridview,header,merge,C#,Winforms,Datagridview,Header,Merge,我在winForm中合并datagridview标题时遇到问题 我使用此代码: void dataGridView1_Paint(object sender, PaintEventArgs e) { Rectangle r1 = dataGridView1.GetCellDisplayRectangle(2, -1, true); Rectangle r2 = dataGridView1.GetCellDisplayRectangle(3, -1, tru
void dataGridView1_Paint(object sender, PaintEventArgs e)
{
Rectangle r1 = dataGridView1.GetCellDisplayRectangle(2, -1, true);
Rectangle r2 = dataGridView1.GetCellDisplayRectangle(3, -1, true);
r1.X += 1;
r1.Y += 2;
r1.Width += r2.Width - 2;
r1.Height -= 6;
using (SolidBrush br = new SolidBrush(dataGridView1.ColumnHeadersDefaultCellStyle.BackColor))
{
e.Graphics.FillRectangle(br, r1);
}
//draw text
using (SolidBrush br = new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor))
{
StringFormat sf = new StringFormat
{
LineAlignment = StringAlignment.Center,
Alignment = StringAlignment.Center
};
e.Graphics.DrawString("merged header", dataGridView1.ColumnHeadersDefaultCellStyle.Font, br, r1, sf);
}
}
在滚动网格之前。一切正常,但滚动后标题文本变为垃圾文本。
请检查一下电话号码
如果有人能帮我找到一个好的解决办法,我将不胜感激
ali.mz我认为最简单的方法是在每次滚动datagridview时使合并头的单元格无效。您需要向Scroll事件添加处理程序:
dataGridView1.Scroll += new System.Windows.Forms.ScrollEventHandler(this.dataGridView1_Scroll);
下面是scroll事件处理程序的实现:
private void dataGridView1_Scroll(object sender, ScrollEventArgs e)
{
Rectangle rect = Rectangle.Union(
dataGridView1.GetCellDisplayRectangle(2, -1, true),
dataGridView1.GetCellDisplayRectangle(3, -1, true));
dataGridView1.Invalidate(rect);
}
希望这有帮助,谢谢